anonymous
  • anonymous
Which is the set of roots for the equation? x2 + 3x - 8 = 0 a: {18,-1} b: {-6,3} c: {-2,9} d: {9}
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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campbell_st
  • campbell_st
I think the equation should be \[x^2 + 3x - 18 = 0\] is that correct..?
anonymous
  • anonymous
i think
anonymous
  • anonymous
yeah it should

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More answers

anonymous
  • anonymous
Which is the set of roots for the equation? x2 + 3x - 18 = 0 a: {18,-1} b: {-6,3} c: {-2,9} d: {9}
anonymous
  • anonymous
what do you guys think
jdoe0001
  • jdoe0001
hint: \(\large \begin{array}{cccllll} x^2&+3x&-18\\ &\uparrow &\uparrow \\ &6-3&6\cdot -3 \end{array}\)
anonymous
  • anonymous
so b
jdoe0001
  • jdoe0001
well.. try those 2 roots in "b", see if they work
jdoe0001
  • jdoe0001
have you covered factoring of quadratics yet?

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